maecil



(No Model.) 3 She ets-Sheet 1.

M. MARCIL.

STRAW BRAID SEWING MAGHINE. No. 292,124. Patented Jan. 15, 1884.

N. PETERS. Pnowumm m. Washinglum n. c.

(N0 Mode-1.) 3 sheets-Sheet 2.

M. MARGIL.

STRAW BRAIDIISEWING MACHINE.-

Patented Jan. 15, 1884.

W -Z I 3 Sheets-Sheet 3.

(No Model.)

M. MAROI L. STRAW BRAID SEWING MACHINE M v v m 1 J w v d m ww w p. Z

w 1 v A w 3 i w g mm W 7 Uivrrnn rnrns MICHEL MARCI L, OF AMHERST,MASSACHUSETTS, ASSIGNOR OF XE-HALF TO THE HILLS COMPANY, OF SAME PLACE.

STRAW-BRAlD-SEWING MACHINE.

SPECIFICATION forming part of Letters Patent No. 292,124, dated January15, 1881.

Application filed May 1?, 1883. (No model.)

50 all whom, it may concern Be it known that I, MIoHnL llIAROIL, a citi-1 zen of the Dominion of Canada, residing at Amherst, in the county ofHampshire and 5 State of Massachusetts, have invented new and usefulImprovements in Straw-Braid-Sewing Machines, of which the following is aspecifi- .cation.

This invention relates to improvements in re sewing-machines, somefeatures of which are especially applicable to machines for sewing strawbraid; and it consists in improved posi- I tive-motion feeding mechanismand means for adjusting the motion thereof, in improved edge and lapguide mechanism, and in improved devices for holding the thread-spooland for conducing to the regular and unobstructed delivery of the threadtherefrom.

In the drawings forming part of this specification, Figure I is a sideelevation of a sewing-machine embodying my improvements. Fig. II is aplan view, partly in section, showing the parts beneath the arm, thelatter and those parts supported by it being removed. Fig. III is asection of the lower part of the machine on the line :0 m, Fig. II. Fig.IV is a plan and a side view (the latter partly in section) of thespool-supporting devices. Fig. V is a front end elevation of themachine. Figs. VI and VII are detail views, illustrating the mechanismconnecting the main shaft and the rock-shaft. Fig. VIII is a side viewof the driving-wheel. Fig. IX is a vertical section of the driving-wheeland of a portion of the mechanism shown in Figs. VII and VI. Figs. X andXI are plan and side views of the press'er-foot and lap-guide. Figs.XII, XIII, XIV, and XV are detail views.

Like letters and numerals indicate like parts in the several figures.

The sewing devices of this machine are substantially those of theVVilcoX & Gibbs machine, the ordinary loopeiyas shown in Fig. V, beingsecured to the end of the main shaft,

' and thereby rotated by the side of the needle.

The frame and arm of the machine are i11- dicated by the letter A, inand on which are provided the requisite bearings, in which operate themain shaft E and the rock-shaft F.

The driving-wheel B is of the usual form, hav-- ing on a reduced portionthereofaband-groove, as shown. Against the end of said reduced part ofwheel B is secured an eccentric-plate, as, having projecting from itsface the eccentric On said eccentric is fitted a ring, .70", having itsouter edge beveled and provided with the stud The eccentric-ring cap 90is secured onto the said plate a? and against said beveled edge of thering 00", whereby the latter is held upon and is free to move around theeccentric or the latter to rotate within said ring.

The above-named wheel 13 and the parts holding the ring a which aredesignated as the eccentric-ring case, and lettered D, are shown insection in Fig. IX, and said devices are secured on the rear end of saidmain shaft E, in the position shown in Figs. I and II. A pitman-yokebox, (a, is fitted onto shaft E, between said eccentric-ring case D andthe frame A, and said box is perforated transversely to let theyoke-arms a pass freely through it, as shown in Fig. VI. The pitman bhas the yoke a on its lower end, in which are fixed said arms a, andsaid yoke is perforated to let the stud :0 on ring a pass through it, asshown. Thus when said parts B and D are rotated, the pitman being inconnection therewith, as shown in Fig. VI, the latter is given areciprocating motion in a line across the axis of shaft E. Said shaft Eextends through frame A to the front end of the machine under thework-plate d", and the usual looper is secured to it, as shown in Fig.V.

A rock-shaft, F, is hung on frame A, on the rear end of which is an arm,I), with which the upper end of the pitman bis connected. The oppositeend of said rockshaft, which terminates just back of the presser-bar andneedle-bar box 8, has fixed thereon a double 9o armed piece, from whichextends (looking at Fig. V) a curved arm, I), and in an oppositedirection from the latter a second arm, hav ing an ordinarylink-connection, b with the needle-bar m. The said needlebar 'isconnected to one side of shaft F and the pitman b to the'end of arm bextending from the 0p:

posite side of said shaft, and thus the needle- T bar and itsconnections and the pitman and its connections so balance each otherthat the rapid oscillating movements of shaft F prduce no unsteadinessin the machine.

An auxiliary short bar, 0 is connected to an arm, a on the presser-barc, and is supported in the box 9 on one side of the box 8, so that itmay move with said bar 0.

At the upper end of bar 0* is placed a rotating arm, 0", having thescrew 0* through it. Said arm is movable on bar 0 from the positionshown in Fig. V to that in Fig. I, and vice versa, whereby the screw 0*is made to stand over the arm Z) when it is desired that the presser-barshall be actuated by the move ments of the latter, and be swung off todisconnect the said bar from said arm. A spring, 0 bears against therear end of arm 0* and holds it to either of said positions after it hasbeen turned. The said screw 0 in arm 0 constitutes a contact-point onsaid arm for the arm I) to operate against, which is variable, for thepurpose of giving more or less lift to the presser-foot. The lever c isthe usual one employed on sewing-machines for lifting and lowering thepresser-foot.

The presser-foot c and the lap-guide d are shown in detail in Figs. X,XI, and XII detached from the presser-foot bar, and wherein are shownthe combined parts and construction of said foot and guide. An arm, 0,extends rearwardly from the upper part of the presser-foot.

The lap-guide (Z is provided with a box, 6, which is fitted to slide onarm 0", actuated by the lever d, which is pivoted on saidarm and has apin, 5, in it, which engages in a slot, 15, (see Fig. XL) in said box,whereby, by open ating said lever, the lap-guide is moved overthewsurface of the work-plate d toward and from the needle.

The edge-guide w is supported on the end of a slotted raclobar, to whichit is fixed, (see Fig. II,) and which is arranged to slide on a suitableprojecting part of frame A by operating a pinion-lever, '10, whose teethengage with those on said rack-bar, which is held in place by a screw,which passes through its slot and through a holding-plate, w". By operating lever the guide 10 is brought to a proper position over thework-plate d. The braid-guide w is supported in the aforesaid projectingpart of frame A under lever 10 and stands in a line with the verticalside of the work-plate d", and serves the usual purpose of holding downthe braid as it is drawn over the surface of the said plate to be sewed.

The four motions of the feed devices of this machine are deriveddirectly from the main shaft E, and are all positi vethat is to say, nosprings are employed; and the feed mechanism is constructed and operatesas follows: On that portion of the main shaft between the vertical partof the arm and the work-plate d is fixed a cam or eccentric, 14, Fig.III. 011

each end of said eccentric is fitted a feed-frame box, 0, within whichsaid eccentric rotates freely. Between said boxes 0 0, on the eccentric14, is fitted the sleeve K of the eccentricrod K, and the end of thelatter is connected with the slotted curved feed-lever i, which is.pivoted by its lower end to the frame of the machine. A bolt, 11,passes through the end of said rod K and through the slot 12 in lever i,which provides means for adjusting the end of said red at differentdistances from the pivoted end of lever '27, whereby the degree of itsvibratory motion is varied. A feed-frame, h, of bifurcated form, has oneend pivoted to a boss on the inner edge of said lever t, and each of itsseparated ends or legs is provided with a yoke, at, having the arms of,secured thereto, and said arms pass freely through suitable perforationsin the said boxes 0 0, as shown in Fig. III. Projecting from one of thesaid legs' of the feed-frame h, in adirection to- V ward the front ofthe machine, and under the work-plate d, is a bracket -shaped arm, 1',shown partly in full and partlyin dotted lines in Fig. I, and in dottedlines under the workplate in Fig. II.

The vertical edge of arm 7; is provided with a tongue, (See Figs. XIIIand XIV,) upon which is fitted the feed-dog block (1*, having a slottherein, through which passes a retainingscrew, 0, having a flat spring,0 under its head, whereby said block is held with some frictional forceagainst said edge of arm' Block (1* is provided with a transverse slotfrom one edge inward near its lower end, in which operates the cam-boltc", Fig. XV, and by turning the latter said block is moved up and downto vary the projection of the feeddog 0 above the work-plate. The latteris secured to block cl, as shown in Fig. V, by a screw.- 3y the rotationof the eccentric 14 in the boxes 0 0, that part of frame It adjoiningsaid boxes, together with the latter, is given a reciprocating verticalmotion, whereby said feed-dog is given a like movement. The retationof'said eccentric in the sleeve K of the rod K imparts to the latter andto frame h, to which it is connected by the lever i, a horizontalreciprocating motion, more or less, according to the point on lever t atwhich rodK is fixed, to produce such a movement of the feed-dog as willdetermine a certain length of stitch. XVhen frame hmoves horizontally,the arms a have a sliding motion in the boxes 0 o.

The spool-holding devices of this machine consist of the spool-stand f,which is secured to frame A in the position shown, having an overhangingarm at the top, which is bored to receive the end of the spindle g, thelatter having the circular plate on its lower end, of greater diameterthan the bobbin or spoolhead. One side of the hole through which spindle9 passes in stand f is provided with a slot to receive tlie wedge r",and thelatter is pivoted to the end of thelever 0', which is hung onstand f, as shown. The spool H is placed'on spindle g and plate 9', inthe position shown in Fig.1. The end of said spindleis passed throughsaid hole in said stand, and the end of lever 0- being pressed down,wedge r is forced between the side of said spindle and the inclined sideof said slot so strongly as to lock said spindle in the position shown,and hold the bobbin so suspended that the thread can be freely drawnoff, and, passing over the edge of plate 9 it is carried beyond the edgeof the bobbin and prevented from catching on the latter, and isprevented from becoming snarled. The spindle g is detached from standfby lifting up the end of lever 'r. The lower end of the stand f affordsa support for the threadguides 11 o" and the tension 8.

WVhat I claim at my invention is- 1. In combination, the needle-barm,.the presser foot-bar c, the rock-shaft F, having the pitman-arm b"thereon, extending in an opposite direction from the arm thereon,connecting said shaft with the needle-bar, the pitman I), provided withthe yoke a, having arms a thereon, the yoke-box a", the ring :0, havingthe stud m thereon, the wheel B, having the eccentric plate as thereon,and the shaft E, substantially as set forth.

2. The combination, with the driving-shaft of a sewing-machine, of aneccentric fixed on said shaft, of two perforated yoke-boxes fitted onsaid eccentric, of a feed-frame, substantially as described, havingyoke-arms fitting the perforations in said boxes, and a feed-dog armthereon, substantially as described, and having its outer end supportedupon a vibratory lever pivoted to the base of the machine, of means,substantially as described, for giving to said feed-frame reciprocatinghorizontal movements, substantially as described.

3. The combination, with the driving-shaft of a sewing-machine, of aneccentric fixed on said shaft, of two perforated yoke-boxes fitted onsaid eccentric, of a feed-frame having yokearnis fitting theperforations in said boxes, and a feed-dog arm thereon, substantially asdescribed, and having its outer end supported upon a slotted vibratorylever pivoted to the base of the machine, and the eccentric-rod K,connected by one end to said eccentric, and having its opposite endadjustably connected to said slotted vibratory lever, substantially asset forth.

MICHEL MARCIL.

Vitnesses:

H. A. OHAPIN, R. F. HYDE.

